Developing-film hanger



Sept. 16, :924. 1,508,804- G. D. PAPPAJION DEVELOPING FILM HANGER FiledAug. 23 1922 gwuentoz %QN1, flttoiwuy I Patented Sept. 16, 1924.

GEORGE D. PAPPAJION, OF DANIELSON, CONNECTICUT.

DEVELOPING-FILM HANGER.

Application filed August 23, 1922. Serial No. 583,802.

To all whom it may concern Be it known that I, GEORGE D. PAPPAJION,

subject of the King of Greece, residing at Danielson, in the county ofWindham and State of Connecticut, have invented certain new and usefulImprovements in Developing-Film Hangers, of which the following is aspecification.

This invention relates to a developing film hanger and seeks, as one ofits principal objects, to provide a simple and efficient de vice of thischaracter which may be conveniently employed to suspend a film within aar for developing.

A further object of the invention is to provide a device which will beformed as a one-piece integral structure, eliminating the use of hingesor other delicate parts such as might corrode or easily break.

And the invention has as a still further object to provide a devicewherein a film may be readily attached to or detached from the hangerand wherein the hanger will be so constructed that the developing fluidwill have free access to the entire area of the film while, when it isdesired to dry the film, all moisture will be permitted to freely drainfrom the film.

Other and incidental objects will appear hereinafter.

In the drawings:

Figure 1 is a side elevation of my improved hanger, showing the devicein position within a conventional developing jar, the jar beingillustrated in section,

Figure 2 is a detail sectional view through the device on the line 22 ofFigure 1, looking in the direction of the arrows,

Figure 3 is a horizontal sectional view on the line 3 of Figure 1,looking in the direction of the arrows,

Figure 4 is a detail sectional view on the line 44 of Figure 1, lookingin the direction of the arrows, and

Figure 5 is a fragmentary perspective view showing a slight modificationof the invention.

The hanger of the present invention is preferably formed of hard rubber,vulcanite, or the like, and includes an oblong frame 10 which, inpractice, will be varied in size to suit the requirements of differentfilms. As brought out in Figures 2 and 3, the frame is formed of spacedcomplemental frame members comprising aarallel front and rear side rails11 and 12 and similar spaced parallel front and rear end rails 13 and 14connecting the side rails. Extending between the outer edges of the siderails near one end of the frame are stop webs or bosses 15 and 16 andextending between said rails at the opposite end of the frame aresimilar elongated stop webs 17 and 18. These stop webs integrallyconnect each pair of side rails with each other and, at the stop webs 17and 18, the front side rails of the frame are cut away throughout themajor portion of the length of said webs to define film entrance gatesor notches 19. Integrally connecting each pair of end rails, near theends thereof, are stop webs 20 extending at the outer edges of saidrails and projecting from the inner edge of the rear end rail at one endof the frame is a medial semi-circular guide lip 21 while from the inneredge of the rear end rail at the opposite end of the frame projects anelongated medially disposed guide lip 22. As shown in Figure 3, theseguide lips are provided with beveled faces sloping to the plane of theinner faces of the rear end rails. Rising from the webs 16 and 18 areupstanding arms 23 bowed toward each other and supported by said arms attheir upper ends is a suspension bar 24. As will be observed, thissuspension bar overhangs the ends of the frame and is provided at itsterminals with depending rests 25 having flat lower faces and elongatedto extend inwardly toward each other beneath the bar and thus definehooks 26 at the ends of the bar. Rising from the upper edge of the baris a medially disposed thumb lug 27 having concave faces so that saidlug may be readily gripped. The hanger as thus described, is, as may beinferred from the foregoing, preferably formed as a one-piece structure,the use of hinges, clamping members, or other movable parts such asmight become detached or might be subject to pre mature corrosion, beingeliminated.

In use, the film to be developed, a film be ing conventionally shown inFigure 2 at 28, is first directed at one end through the gates 19 toenter between the front and rear side bars of the frame when the film isshifted endwise to dispose the forward margin thereof between the endbars at what may be conveniently termed the forward end of the frame,the lip 21 serving to direct the film between said end bars. The rearend portion of the film is then bowed when the rear margin of the filmis inserted between the free access to the entire area of the filmwhile, when it is desired to dry the film, all

' moisture may be readilydrained therefrom. I After the film has beenarranged withm the frame, as just described, the frame may then-beemployed for suspending the film within a developing jar and, in Figure1 of the drawings, I have conventionally illustrated such a jar at 29.The suspension bar 24 is, of course, grasped for lowering the hangerinto the jar until the rests 25 thereof abut the end walls of the jarwhen the suspension bar will function ,to suspend the frame within thejar, the film being immersed. As will be perceived, several of thedevices may be arranged side by side upon a single jar and the hangerframes will serve to maintain the several films carried by the hangersout of contact with each other while when thevdevice is not in use, thehooks 26 of the rests 25 will provide a convenient means for supportingthe hanger upon a drying line, a nail or the like. At the angles betweenthe front, side and end rails at the rear end of the frame are notches30 beneath which said bars are, as shown in Figure 4, provided withbeveled faces'31. Thus, the

rear corners of a film may be inserted through said notches when thebeveled faces suificiently to direct the ends thereof through the loopsas well as to disengage the ends of the slat from within the loops.Otherwise, this modified construction is identical with the preferredform of the invention.

"mental frame members to receive a filmtherebetween and having spacedwebs there on rigidly connecting the'members and disposed to sustain thefilm limiting the film against displacement from between the members.

hanger frame comprising spaced complemental frame members to receive afilm therebetween and having means thereon rigidly connecting themembersand disposed to sustain the film limiting the film againstdisplacement from between the members, one of the members being cut awayat certain of 2. A developing film hanger including a said means toprovide entrance gates for the I insertion of the film between themembers;

3. A developing film hanger including a hanger frame comprising pairs ofspaced side and end rails to receive a film therebetween, and spacedmeans rigidly connecting said rails and disposed to sustain the filmlimiting said film against displacement from 7 between the rails.

4. Ardeveloping film hanger including a hanger frame comprising pairs ofspaced side and end rails to receive a film therebetween, and spacedwebs rigidly'connecting said rails and disposed to sustain the filmlimiting said film against displacement from between the rails a g 5; Adeveloping filmhanger including a hanger frame comprising pairs ofspaced side and end rails to receive a film therebetween, and spacedwebs'rigidly connecting said rails and disposed to sustain the filmlimiting said film against displacement from between the rails,corresponding railsbeing cutaway at certain of said webs to defineentrance gates for the insert-ionof the film between the rails.

- 6. developing film hanger including a if by the frame, a nd 'a crossslat removably engageable at itsends in said loopsto conhanger frametoreceive a film,loopscarried V front the film limiting the film againstbow- I ing.

Intestimony whereof I afiix my. signature.

. GEORGE D.PAPPAJION. V [Ls] j

